Using the correct illuminator makes all the difference

You wouldn’t limit your microscope with improper optics, so why limit it with improper illumination? ULTRASPEC-III offers laser wavelengths at 660nm, 1064nm and 1300nm. This gives the immediate flexibility to illuminate just the topside or silicon surface and then switch to 1064nm (or 1300nm if you have a longer wavelength sensitive camera) for crisp high contrast backside imaging.